GEOGRAPHY-VOLCANOES

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  • Created by: phoebe
  • Created on: 09-04-18 10:28
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  • VOLCANOES
    • Found at DESTRUCT-IVE and CONTRUCT-IVE plate margins.
    • Destructive Margins
      • Here the oceanic plate goes under the continental plate because its more dense.
      • The oceanic plate moves down into the mantle, where its melted and destroyed.     A pool of magma forms. The magma rises through cracks in the crust called vents.        The magma erupts onto the surface (lava) forming a volcano.
    • Constructive Margins
      • Here the magma rises up into the gap created by the plates moving apart, forming a volcano.
    • Some volcanoes also form over parts of the mantle that are really hot (called hotspots) eg in Hawaii.

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